What is the inhalation process? When you inhale (breathe in), air enters your lungs and oxygen from the air moves from your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathe out). This process is called gas exchange and is […]
Which liquid would evaporate most quickly at room temperature?
Which liquid would evaporate most quickly at room temperature? Acetone has the weakest intermolecular forces, so it evaporated most quickly. Water had the strongest intermolecular forces and evaporated most slowly. Which type of liquid dries the fastest? The rubbing alcohol evaporated the fastest followed by water and finally vinegar. Olive oil didn#t seem to evaporate […]
What is the mass of one electron in grams?
What is the mass of one electron in grams? The invariant mass of an electron is approximately 9.109×10−31 kilograms, or 5.489×10−4 atomic mass units. On the basis of Einstein’s principle of mass–energy equivalence, this mass corresponds to a rest energy of 0.511 MeV. The ratio between the mass of a proton and that of an […]
Why does O 3 not exist?
Why does O 3 not exist? An electrically-neutral oxygen atom gains two electrons to form an oxygen ion with two negative charges. The ion would thus be highly unstable and potentially readily lose that outermost electron and return to O3− as the ten inner shell electrons seek to get rid of the additional electron. Why […]
When 1kg of ice at 0c is mixed with?
What is the deadliest snake in South Carolina?
What is the deadliest snake in South Carolina? copperhead snake Do mountain lions live in SC? Today there are no wild reproducing populations of cougars in South Carolina. Although gone from the eastern US (except Florida), the cougar is doing well throughout much of the western US, and is a game animal in many locations. […]
What items are not sustainable?
What items are not sustainable? Here are the 10 worst single-use plastics and some eco-friendly alternatives you can swap them for! Plastic Straws. In Australia, 2.47 billion plastic straws end up in landfill. Plastic Drink Stirrers. Balloon Sticks. Plastic Cotton Buds. 5 & 6. Plastic Cutlery. Plastic Cups. Plastic Containers. What is the difference between […]
What are the six common phase changes?
What are the six common phase changes? A phase change is the reversible physical change that occurs when a substance changes from one state of matter to another. Melting, freezing, vaporization, condensation, sublimation, and deposition are six common phase changes. What are the phases of solutions? A solution is composed of one phase (e.g., solid, […]
What is the difference between red vs yellow marrow?
What is the difference between red vs yellow marrow? Red blood cells, platelets and most white blood cells arise in red marrow; some white blood cells develop in yellow marrow. The color of yellow marrow is due to the much higher number of fat cells. Both types of bone marrow contain numerous blood vessels and […]